EC25AF stops not ringing and does not call out until reboot

[mlast]

I have a problem very similar to a previous post (linked below), but I do not know whether there was a solution:

The problem is on the EC25AF Module. Voice calls stop working after a SIM has been registered and idle for a few hours (around 3 hours, but it could be less).

• When the SIM registers, voice calls work well for both inbound and outbound
• Eventually, outbound calls are handed to the network, but the destination never rings.
• Inbound calls do not arrive at the module
• When the module reboots, voice calls work again
• During this problem, other SIMs on the same carrier that have been recently registered work fine on other modules
• During this problem, SMS and Data work fine.

I have upgraded to the following version, and the problem remains:
AFFAR07A14M4G_01.003.01.003
VERSION: EC25AFFAR07A14M4G
Jun 28 2022 16:07:15
Authors: QCT

Here are previous post of a very similar problem:

EC25AF does not ring with incoming calls, and does not make calls on multiple attempts

Hello, I need a solution for EC25-AF. I have several devices that do not make calls to me and when I call the device it does not ring, in some devices after restarting them they work, but after a few days I get the same error. In others, I have no solution with the restart process Help with some firmware or commands to solve the incident. ------- EC25AFFAR07A08M4G_01.001.01.001 --------Current firmware. Thank you so much.

EC25AFX hangs with no voice & sms after several hours of usage

Hi, Having EC25AFXGAR07A03M1G_30.001.30.001 working in USA/T-Mobile. The modem hangs after several hours of usage - no voice calls, no SMS’es but it still reports it is registered. After applying AT+CFUN=1,1 it begin work for next several hours. How to debug / fix ?

[AnnaLiu]

hi
after sleeping for a period of time, how long does it take to make a test call without hearing the ringtone? This version is already the latest version.
thanks.